652591 has 2 divisors, whose sum is σ = 652592. Its totient is φ = 652590.

The previous prime is 652577. The next prime is 652601. The reversal of 652591 is 195256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 652591 - 2⁵ = 652559 is a prime.

652591 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326295 + 326296.

It is an arithmetic number, because the mean of its divisors is an integer number (326296).

2⁶⁵²⁵⁹¹ is an apocalyptic number.

652591 is a deficient number, since it is larger than the sum of its proper divisors (1).

652591 is an equidigital number, since it uses as much as digits as its factorization.

652591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 28.

The square root of 652591 is about 807.8310466923. The cubic root of 652591 is about 86.7388566828.

The spelling of 652591 in words is "six hundred fifty-two thousand, five hundred ninety-one".